• Yanhong Han, Weiyi Yang, Jianke Pan, Lingfeng Zeng, Guihong Liang, Jiongtong Lin, Minghui Luo, Da Guo, and Jun Liu.
• Second School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
• Arch Orthop Trauma Surg. 2018 Oct 1; 138 (10): 1335-1345.

BackgroundThe knotless barbed sutures (KBS) are an innovative type of suture that can accelerate the placement of sutures and eliminate knot tying. Whether the KBS are safe and efficient in total joint arthroplasty (TJA) remains controversial. Therefore, we conducted a meta-analysis to evaluate its efficacy and safety.MethodsRandomized-controlled trials (RCTs) were identified from the PubMed, Embase, and Cochrane Library databases up to October 2017. The Cochrane risk of bias tool was used to assess methodological quality. The statistical analysis was performed with RevMan 5.3.5 software.ResultsA total of five RCTs (600 participants) were included in our meta-analysis. The results showed that KBS reduced wound suture time (MD - 4.51, 95% CI - 5.37 to - 3.66, P < 0.00001) and the wound suture cost (MD - 282.63, 95% CI - 445.32 to - 119.95, P < 0.00001), and did not significantly increase the rate of complications (OR 0.77, 95% CI 0.42-1.39, P = 0.13) or intraoperative events (OR 0.86, 95% CI 0.04-17.28, P = 0.92). There were no significant differences in ROM at postoperative 6 weeks and 3 months (MD - 0.74, 95% CI - 4.19 to 2.71, P = 0.67; MD - 0.30, 95% CI - 2.62 to 2.02, P = 0.80; respectively).ConclusionOur findings suggest that KBS are a safe and effective method for TJA. Given the possible biases, adequately powered and better designed studies with longer follow-up are required to reach a firmer conclusion.

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